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HUT43271A
|
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Method for regenerating the filtering layer of thin-layer closed sand-filter of fine grain serving for filtering fluids
|
|
HUT41101A
|
|
Regulator of level
|
|
HUT41332A
|
|
Compact sewage purifier and sludge treating equipment
|
|
HUT38703A
|
|
Fluid feeder of hydraulic operation for getting fluids into space being under pressure
|
|
HUT41652A
|
|
Device for dissolving, suspending advantageously powdered or lumpy chemicals and dosing the solution, suspension
|
|
HUT36438A
|
|
Gravity sewage sludge thickener
|
|
HUT43375A
|
|
Lift-over pump
|
|
HU186698B
|
|
Circuit arrangement for limiting electric power consumption and indicating over consumption
|
|
HUT34610A
|
|
Level sensing apparatus, preferably for liquids
|
|
HUT35221A
|
|
Mixing aerating device
|
|
HU182216B
|
|
Wc flushing device for flushing with different water amounts
|
|
HU181200B
|
|
Horizontal equipment for aerated lifting contaminated fluid
|
|
HU180733B
|
|
Biological sewage purificating equipment of earth basin
|
|
HU174563B
|
|
Mixing-aerating apparatus
|
|
HU174562B
|
|
Two-stage tower filter
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